Hi Sally,
Can't help you very much, but I found the following baptism in the Parish Registers
for St Mary's Church, Briton Ferry:-
4th February, 1872 Florence Cath. AURELIUS father Thomas (Engine Fitter) mother Sarah
living in Briton Ferry.
No other baptisms listed, nor are there entries for marriages or burials.
I also checked St Baglan Church, Baglan - no entries there either.
Best wishes,
Brian